get rid of block_write_begin_newtrunc

Move the call to vmtruncate to get rid of accessive blocks to the callers
in preparation of the new truncate sequence and rename the non-truncating
version to block_write_begin.

While we're at it also remove several unused arguments to block_write_begin.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 1dd9e6a7d787..5c694ece172e 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -197,11 +197,15 @@ static int nilfs_write_begin(struct file *file, struct address_space *mapping,
         if (unlikely(err))
                 return err;
 
-        *pagep = NULL;
-        err = block_write_begin(file, mapping, pos, len, flags, pagep,
-                                fsdata, nilfs_get_block);
-        if (unlikely(err))
+        err = block_write_begin(mapping, pos, len, flags, pagep,
+                                nilfs_get_block);
+        if (unlikely(err)) {
+                loff_t isize = mapping->host->i_size;
+                if (pos + len > isize)
+                        vmtruncate(mapping->host, isize);
+
                 nilfs_transaction_abort(inode->i_sb);
+        }
         return err;
 }